| Budget Amount *help |
¥15,730,000 (Direct Cost: ¥12,100,000、Indirect Cost: ¥3,630,000)
Fiscal Year 2020: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2018: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2017: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Outline of Final Research Achievements |
It was revealed that there is a paddy field contaminated with cadmium and mercury in Jiangsu Province, China. In those paddy fields, rice cultivation experiments were conducted by adding a soil conditioner obtained by fermenting bark, and it was found that the addition of the soil conditioner could suppress the uptake of heavy metals into rice. In particular, this effect is remarkable in cadmium, and it has been clarified that the addition of a soil conditioner can reduce the cadmium concentration of rice exceeding the standard value to below the standard value. In rice pot cultivation tests conducted in China and Japan, it was clarified that the soil conditioner obtained by fermenting bark can suppress the uptake of cadmium into rice even under different conditions of soil and rice varieties.
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